What is Diamond Carat?

Delve into the exciting world of diamonds with our detailed diamond size chart. This guide will help you go beyond carats and dive into the precise millimeter measurements of these precious stones. By converting carat weight into clear and understandable dimensions, our chart makes it clear for you to visualize the true size of a diamond. Whether you’re fascinated by the unique charm of princess cut or allure the timeless beauty of a round cut diamond. Our diamond size chart in mm makes sure you find your perfect stone. Let us help you make an informed decision that meets your highest expectations for beauty & brilliance.

Diamond Size In MM	Diamond Carat Weight
4 mm.	0.25 ct.
5.0 mm.	0.50 ct.
5.75 mm.	0.75 ct.
6.5 mm.	1.00 ct.
6.8 mm.	1.25 ct.
7.3 mm.	1.50 ct.
7.75 mm.	1.75 ct.
8 mm.	2.00 ct.
8.7 mm.	2.50 ct.
9.1 mm.	3.00 ct.
9.75 mm.	3.50 ct.
10.25 mm.	4.00 ct.
10.75 mm.	4.50 ct.
11 mm.	5.00 ct.

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Diamond Size In MM	Diamond Carat Weight
0.8 mm.	0.0025 ct.
1 mm.	0.005 ct.
1.1 mm.	0.0067 ct.
1.2 mm.	0.009 ct.
1.25 mm.	0.01 ct.
1.3 mm.	0.01 ct.
1.5 mm.	0.015 ct.
1.75 mm.	0.02 ct.
1.8 mm.	0.025 ct.
2 mm.	0.03 ct.
2.2 mm.	0.04 ct.
2.5 mm.	0.06 ct.
2.75 mm.	0.08 ct.
3 mm.	0.10 ct.
3.25 mm.	0.14 ct.
3.5 mm.	0.17 ct.
3.75 mm.	0.21 ct.
4 mm.	0.25 ct.
4.25 mm.	0.28 ct.
4.5 mm.	0.36 ct.
4.75 mm.	0.44 ct.
5.0 mm.	0.50 ct.
5.25 mm.	0.56 ct.
5.5 mm.	0.66 ct.
5.75 mm.	0.75 ct.
6 mm.	0.84 ct.
6.25 mm.	0.93 ct.
6.5 mm.	1.00 ct.
6.8 mm.	1.25 ct.

Diamond Size In MM	Diamond Carat Weight
7 mm.	1.30 ct.
7.3 mm.	1.50 ct.
7.5 mm.	1.67 ct.
7.75 mm.	1.75 ct.
8 mm.	2.00 ct.
8.25 mm.	2.11 ct.
8.5 mm.	2.43 ct.
8.7 mm.	2.50 ct.
9 mm.	2.75 ct.
9.1 mm.	3.00 ct.
9.5 mm.	3.35 ct.
9.75 mm.	3.50 ct.
10 mm.	3.87 ct.
10.25 mm.	4.00 ct.
10.5 mm.	4.41 ct.
10.75 mm.	4.50 ct.
11 mm.	5.00 ct.
11.25 mm.	5.49 ct.
11.5 mm.	5.85 ct.
12 mm.	6.84 ct.
12.25 mm.	7.26 ct.
12.5 mm.	7.36 ct.
12.75 mm.	7.52 ct.
13 mm.	8.51 ct.
13.5 mm.	9.53 ct.
14 mm.	10.49 ct.
15 mm.	12.89 ct.
16 mm.	16.06 ct.

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What is Diamond Carat?

When it comes to determining the weight of a diamond, we use a diamond carat as a unit of measurement. 1 carat is equivalent to 200 milligrams (0.2 grams). The value and price of a diamond are highly influenced by the carat weight followed by the cut, clarity, and color.

Larger carats do not always mean bigger size

Generally, a higher carat weight signifies a larger diamond, two similar carat weight diamonds can appear different in size depending on their cut.

Price

The diamond’s price is directly proportional to its carat weight. The cost of a 2-carat diamond is typically much more than twice the cost of a 1-carat diamond due to its rarity.

Does not reflect quality

Being a measurement of weight, carat doesn’t directly reflect the quality of a diamond. Moreover, to judge the quality we need to consider other factors such as color and clarity.

Find Your Sparkle With Our Diamond Size Chart

Shining a light on perfection! Explore our certified diamonds and gemstones, each guided by our comprehensive diamond size chart, showcasing natural masterpieces ready to adorn your dreams.

Diamond Grading Factors: How is Clarity Graded?

Several factors are taken into consideration when measuring diamond
clarity, such as:

Size

Usually, with more inclusions, the impact on the clarity grade also tends to increase. A stone’s durability can also be impacted by extra large, close-to-the-surface, or surface-reaching inclusions.

Number

The visibility factor plays a major role in judging the number of inclusions. However, the more the number of clarity characteristics, the lower the clarity grade becomes.

Position

Position identifies the location where inclusions and blemishes are present in the diamond. Imperfections can occur anywhere, internally or externally, however, the closer they are to the center of the table, the greater the impact it creates on clarity.

Nature

The nature of an inclusion implies its type and the degree of penetration within the diamond. External flaws are called blemishes and internal imperfections are called inclusions.

Relief

Relief signifies the distinctness in terms of inclusions or blemishes in contrast with the diamond. A low-relief inclusion is transparent or white, while a high-relief inclusion is dark. Relief has a direct effect on the overall clarity.

FAQ on Diamond Size Chart

What is a respectable diamond size?

The most sought-after diamond carat range falls between 1.0 and 1.9, yet there are distinct surges in demand for diamonds size ranges within the 0.70 – 0.79, 0.90 – 0.99, and 1.50 – 1.59 carat.

What is the most common diamond size?

The distribution of diamond size varies significantly depending on geographic location and the characteristics of the local population. For instance, in the United States, the typical diamond size for an engagement ring stands at approximately 1 carat. In contrast, across the pond in the United Kingdom, the average dips to 0.6 carats, while in Europe, it further decreases to approximately 0.5 carats.

What is an impressive carat size?

The Diamond Size of 3.00 Carat is undoubtedly impressive and stunning that is observed very rarely in people’s jewelry.

What is the average carat size for engagement rings?

As far as engagement rings are concerned, the average total carat weight in the United States is 1.08 carats. There are noticeable peaks at 0.70 to 0.79 carats, 0.90 to 0.99 carats, and 1.50 to 1.59 carats, although the range of 1.0 to 1.9 carats is by far the most popular.

Does a bigger carat mean a better diamond?

A larger carat and a larger diamond are not always the same thing. So, avoid spending your hard-earned money on the carat weight alone. Rather, focus on all the individual characteristics to make a sound decision. In the end, a large diamond with poor color and clarity will not have the same amount of sparkle as compared to a lower-carat, higher-quality diamond.

Is carat the most important of the 4Cs?

No, the most important of the 4 Cs of diamonds is generally the cut. However, carat is indeed one of the important factors that decide the diamond’s overall quality and value. Therefore, cut is considered the most critical, followed by color, clarity, and carat weight.

What is the price difference between diamonds with similar carats?

The price of a diamond can also varies when it comes to diamonds with similar carat weights, due to a number of factors such as:

Carat Weight

With its carat weight, the price of a diamond increases exponentially. A 1.5-carat diamond, for example, can cost more than 1.5 times as much as a 1-carat diamond.
Size Category

The price per carat increases with the weight. Taking the example of a two-carat diamond might cost $6,820 per carat, as opposed to a three-carat diamond, which might cost $13,681.
Appearance

The diamond’s actual appearance may affect its price, including any visible imperfections, defects, blurs, or shades.
Other Factors

In addition to the 4 Cs of diamond grading (color, clarity, cut, and carat), demand and supply also influence the price of diamonds.

How does carat affect the appearance of a diamond?

The higher the number of carats, the larger the diamond will often be. The measuring criteria of diamonds are their weights and not sizes. However, the cut can also affect the appearance of a diamond.